Improvement in rock-drilling machines



timi ditta.

NATHANIEL TUOKER, LEVI WTLLAMS. AND HENRY H. COPPOO'K, OF

. PLEASANT HILL, OHIO.

Letters. Patent No. 109,158, dated November 8, 1870.

IMPROVEMENT I ROCK'DRILLING MACHINES.

The Scheule refen'ed to in these Letters Patent and making paxstflof the same.

To all wlwm it may concev'n- Be it known that we, NATHANIEL TUoKEn, Lnvr WILLIAMs, and HENRY H. CorrooK, all of Plcasant Hill, in the county of Miami and' State of Ohio, have invented certain new and useful and useful ImprovementsV in Machinery for Drilling Rock and other like substances; and we do hereby declare that the following' is a full, clear, and exact description thereof, reference being had to the accompauying drawing` making part of this specification, in which- Figu're 1, plate 1, is an elevation of one side of the improved drilling-machine.

Figure 2, plate 1, shows one form of drilling-tool attached to a portion of the drill-rope.

vFigure 3, plate 1,'is a top View of vthe machine.

Figure 4, plate', is a front view of the machine.

Figure 5, plate 2, is a seetioual vicwin detail of the shifting cam-shaft, and the parts immediately conuected therewith.

Similar letters of reference indicato corresponding parts in the several figures.

This invention 'relates to certain novel improvei'nents on machinery which is adapted for drilling into the earth.

It consistsllirst, in the application of a folding frame to the main frame of the machine, for carryi'ng at a considerable height above said main the pulley over which the drill-rope passes, said folding frame being so constructed that, when it is necessary to transport the machine from one place to another, it can bc foldcd into a very small space. I

Second, in the' application to the shat't which car.- ries the windlass or winding drum of t'he drill-rope,

.and which also carries a slow-speed spur-wheel, of a vihrating levcr, one end of which carries a pulley, under which the'drill-rope passcs, and the other cud or arm lies in such a' 'position as to he acted'upon by a cam or tappet, which is applied toa shifting-shaft, and which at certain times, gives an intermit-tent 'vertical motion to the drill-rope, as will bc hercinafter explained.

Third, in. combining with the .said drum-levcr, slow-speed wheel, and cam or tappet, a shifting-lcver and clutching `device, together with a pinion and belt-wheel, which lattcr Wheels are the cam-shaft, whereby the operation of the cam on its levcr can he stopped'at pleasure, and at the same time the' pinion on the cam-shaft be made to operate on the drumshaft, and wind up the drill-rope, as will bc hcrcinaftcr explained. p v

Fourth, in the application of an unwindiug device [o the slow-speed wheel, which can be opcrated either to raise or to lower the drill, whether the machine be working or at rest, as will be hereinafter explained.

To enable others skilled in the art to understand our inventiou, we will (lescribc its construction and operation.

In the accompanying drawing- A A reprcseuts a rcctangular frame strength cned, braccd, and otherwise adapted to contain and support the several parts constitutiug our improved drillingmachine. Z

At one cud of this frame the Vertical posts a. are prolonged, and have pivoted to them at l two lateral per endsto two standards, B1 B1.

The same pivot-bolt l, which connects the braces B B to the frame A, also connects the lower euds of the said standards to this frame, as shown iu fig. 4.

The twoinclined braces B2 B2, which are secured at l) bl, servc to sustain the frame B B' in a Vertical position. By removing these braces B2B2 the said frame can he turned down upon topl of the main frame A, out of the way, without detachin'cr it from the latter.

The folding frame carries at its highest part a grooved'pulley, c, over which the drill-rope c' passes, and from which this rope with its drill D- depends. The rope c' is passed beneath a grooved pulley, g, and thence to a fianged drum, E, around which the the rope is wound.

The drumE is keycd on a horizontal shaft, (l, which has its beariugs in suitable boxes on top of the frame A. The pulley g is applied to a yoked or open lever, F, having its fulcrum on the shaft cl, the front portion f' of which levcr is'guidcd between the two segmcuts P 1? of frame A, at the upper terminus of which is a spring-block, for relieving shocks to the levcr F when its front end rises sud'denly.

a bevelcd extension, f, which is arranged over a camshaft, j, and at' certain times is acted upon by a cam or tappet, J on said shaft.

The cam J is scroll-shapcd, and gives quick ribrating movemcnts to the levcr F, which movemeut-s impart vertical motion to the drill-ropc and drill. This cam J is keyed on the shaft j, on one end of which shaft a bclt-whccl, L, is keyed. This belt-wheel receives rotary motion from any suitablcprime mover, and transmits motion to the several parts of the machine.

The shal`t 7I is allowed to receive an endwise movement, which can be given to it by a shifting-lever, M, whosc fnlcrnm is at n'. The shelt' m for lever M is pcrforatcd, to receive a stop-pin, by which this levcr can be fixed in the desired position.

On one end of the hub of cam J teeth s are formed,

inclined hraces B B, which are connected at their np- The rcar dcpre'ssed portion of lcverlf terminates in which col'l'espond to teeth s' on the hub of a pinion v spul'-wlleel, K, and form a ehltch for engaging tllis spnl'-\\-'lleel to theicam-shaft on which it is loosely applied.

The pinioll K engages with the teeth of alal'ge slowspeed wheel, N, which is keyed oll the drnm-sha'ft 11,' and, when the cal-m J is in position toopel'ate upon the frame F, wheel K is Vnot cl'lgaged with, nol' will it tlll'n with the cam-shaft; but, when this canl-'shaft is l'llo'ed by level' M, so that the teeth s s' become cngaged,'tllen pinion-wheel K will opel'ate through'wheel N to wind np the drill-l'ope oll lruln E. Enllwise motion oftthe pinion-wheel K, is prevented by a station- :lry feather, o, which is received into a groove in the h'nb of said pinion, as shown in fig. 5. I

For the pul'pose of nnwinding the drill-l'opl, a pinion spin-wheel, h, applied-on tlle shaft i of a hand-crank, S,`is employcd. VIll colljnnction with this paying-ont device a l'atcllet-wlleel, 7:, oll shaft i, and 'a pawl, I, applied to'fl'ame A are employed for preventing the drill from descending when it is not (lesil'ed that it should do so.

'It will be seen from the above description that,

while the cam-shaft cl is rotating, it can be shifted in the dil'ectioll of its length, and 'cam J fmoved either' beneath the level' F, ol' to one side thel'eof, in a'position which will enga-ge the pinion K with its shaft, and wind up the dl'ill-l'ope. It will also be seen that when` the cam J is acting upon the level' F, an attendant can pay out the (ll'ill-l'ope and feed the dl'ill down to its work as l'apidlyas the same progresses;

Having descl'ibed onl' invention,

-What we claim as new, and desil'e to vsecure by Letters Patent, is-

1. The dl'ill-l'ope plllley c, applied to a frame,- B B1,

t which is pivoted to the main fl'alne A, inVcolnbinat-ion with the braces B2, s'ubstantially as described.

2. The level' F, c'onstl'nctcd and al'l'anged' as-de-V scrihed and shown, so that, while it ocoupics a place llpon the shaft (Z, it does not intel'fel'e with the drum which is also on said Vsllaftfscil level' carrying the pulley g, alld being operatfl by the cam J, all substantially in the mannel'set fnl'th.

3. The cam ol' tappet J, keyed ou the cndwise ad-' jnstable shaft j, ill combination witll the loose spul' wheel K, clutch' s s', and fast drum L, and also in combination with the level' F and slow speed wheel N, snhstantially as described.

fi. In combination with the slow-speed wheel N, and its pinion K, and the dl'nln E and vibl'ating level' F, the paying-ont device, snbstantially as described.

NATHANIEL TUOKER. LEVI WILLIAM'S.' 'HENRY H. OOPPOCK.

Witnesses:

S. G. S. BAm'ox, J. K. TEETER; 

